Abstract
The interfacial distribution of a number of organic photometric reagents in a water‒potassium bis(alkylpolyoxyethylene)phosphate (oxyphos B)‒ammonium sulphate splitting system is studied. It is found that alizarin complexone, 1-(2-pyridylazo)-2-naphthol-2 (PAN), bromothymol blue, rhodamine 6G, pyrogallol red, morin, fuchsine, malachite green, bromothymol blue, pyrocatechol violet (PCV), chromazurol S, and aluminon are extracted with partition coefficients higher than 100. A possibility of the extraction‒photometric determination of gallium with PCV and cobalt with PAN is shown. The proposed procedures do not require the use of fire-hazardous, volatile, and toxic organic solvents.
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Original Russian Text © S.A. Denisova, A.E. Lesnov, N.N. Ostanina, 2018, published in Zhurnal Analiticheskoi Khimii, 2018, Vol. 73, No. 5, pp. 352–357.
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Denisova, S.A., Lesnov, A.E. & Ostanina, N.N. Extraction of Metals in a Water‒Potassium Bis(Alkylpolyoxyethylene)Phosphate‒Ammonium Sulfate System with Various Photometric Reagents. J Anal Chem 73, 427–431 (2018). https://doi.org/10.1134/S1061934818030048
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DOI: https://doi.org/10.1134/S1061934818030048